stockmarket

It's been a brutal week for Korean retail investors.
On July 13th the KOSPI fell 8.95% in a single session, triggering the seventh circuit breaker of 2026. That's more than half of all the circuit breakers in the Korea Exchange's entire history, all in one year. The index was dragged down by the country's two largest chipmakers, with SK Hynix falling 15.37% (its largest one-day drop on record) and Samsung Electronics down 10.7%.
Reports suggest more than 1.2 million leveraged retail accounts triggered margin calls, with 320,000 to 360,000 fully liquidated by their brokers. If accurate, that's roughly 1 in every 30 Korean adults getting a margin call in the same week.
🕯 The Move Isn't the Story
Zoom out and the KOSPI is still up roughly 62% year to date, sitting 27% below the all-time high it set on June 19th. After nearly doubling in seven months, a correction isn't unusual. The sharp move isn't out of context. The liquidation numbers are.
Reports show the most affected were investors in their 20s and 30s, accounting for roughly 62% of all bankrupt or forced-liquidation accounts, with a large chunk of that cohort heavily weighted toward high-risk leveraged products. And a significant portion of the capital came from debt.
You can see how normalised this has become in the slang. Korean retail traders have two words for it. 'Yeongkkeul' roughly translates to "pulling one's soul together" and describes stretching your finances to the limit, borrowing every possible penny to invest. 'Bittoo' combines 'Bit' (debt) and 'too' (investment).
South Korea's five major commercial banks have already exhausted over 85% of their annual household loan growth limits in the first half of the year, and those loans are reportedly being used to fund stock purchases. Many now expect a severe "loan cliff" in H2 as banks restrict new lending to prioritise repayments.
The situation is bad enough that Korea's Financial Services Commission has announced an Economic Crisis Family Suicide Prevention Plan, including a national debt-counselling hotline launching in October. The regulator has also halted new single-stock leveraged ETFs and raised minimum deposit requirements. Leverage has become a household solvency issue.
Why a Generation Does This to Itself?
Ask a boomer and they'll tell you the younger generation is too lazy to make money through "real work." Look at the statistics and you get a different answer.
FINRA and the CFA Institute's Gen Z and Investing survey found 62% of under-35s believe taking big risks is required to get ahead. The driver isn't greed. It's anxiety. Deloitte's 2025 survey found more than half of Gen Z and millennials live paycheque to paycheque, with over 80% citing their long-term financial future as a primary source of stress.
A 2019 academic paper argues class position in developed economies is now set by asset ownership rather than wages. That's the consequence of a K-shaped economy, where those on the upper arm gain from rising asset values while those on the lower arm face declining purchasing power and stagnating pay.
Post-2008 and post-COVID were textbook K-shaped environments. Central bank policy inflated asset prices, rewarding existing owners and punishing aspiring ones. AI-driven productivity gains have thinned the job market further. The gap between asset owners (mostly boomers) and non-owners (mostly Gen Z and millennials) has widened fast. Leveraged bets are what's left when the conventional ladder stops working.
🇺🇸 America Is Running the Same Setup
This isn't a South Korea problem. The US is running the same playbook in slow motion.
FINRA data shows margin debt hit a record $1.42 trillion in May, up 53.7% year on year the fastest accumulation in roughly three decades. Zero-day-to-expiry options now account for 59% of all S&P 500 volume per Cboe's full-year 2025 data, with retail responsible for half or more of that flow.
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